Abstract: There is provided a respirator for supplying clean air for a wearer. The respirator comprises a face assembly comprising an oronasal mask configured to seal against and cover a nose region and a mouth region of the wearer. The face assembly may be configured to be interchangeable on the respirator between a half-face assembly and a full-face assembly. The respirator comprises a securing headgear releasably securable with the face assembly, the securing headgear assembly configured to secure the respirator on a head of the wearer. The respirator comprises a facepiece assembly for supplying the wearer with air for inhaling and releasing air exhaled by the wear, the facepiece assembly releasably securable with the face assembly. One or more of the face assembly, the facepiece assembly, or the securing headgear are configured to be released from the respirator, sterilized, and releasably resecured with the respirator.

Abstract: A vest garment with multi-purpose, universal hydration carrier system compartment: adapted and configured to have the functionality of a vest with an incorporated load carrying compartment primarily but not limited for containment and support of a personal hydration carrier system. The inside and outside of the front portions comprise but are not limited to at least one load carrying compartment or related attachment means. The multi-purpose load carrying compartment is attached to and occupies a surface area greater than fifty percent of the back panel which may then act as a universal carrier for personal hydration carrier systems or as a storage compartment for various paraphernalia.